But SAM...
See also: RDM
Also in re: spell speed, it still reduces GCD time whether the spells are instant or not; and there are non-speed options for almost every gear slot anyway.
Tangentially, and not in accusation toward Hasrat, why do people make such a big deal about Disciples of Magic having to have cast times? This came up like fifty times in the BLU tank threads for some reason, despite that there are plenty of already-in-game examples of Spells that are instant. "Spell" doesn't have to mean "complex two hour ritual that I need to stand in one spot for".